Steam-pipe and boiler covering



(No Model.)

7 LA FAYETTE ALDRICH.

STEAM PIPE AND BOILER COVERING.

Patented Deg. 9, 1884 N. PETERS. PhowLnhngmpher, wflshmglon. ac

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LA FAYETTE ALDRICH, OF MILVAUKEE, "WISCONSIN.

STEAM-PIPE AND BOILER COVERING.

SPECIFICATION" forming part of Letters Patent No. 308,943, datedDecember 9, 1884.

Application filed February 4, 1884.

To (0 whom, it may concern.-

Be it known that I, LA FAYETTE ALDRICH, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements inSteam-Pipe and Boiler Coverings; and I do hereby declare the followingto be a full,'clcar, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and toletters or figures of reference marked the1eon,whicli form a part ofthis specification.

My invention relates to improvements in covering for steam-pipes andboilers, and pen tains to that class which is formed in separatesections preparatory to being laid upon the pipe or boiler.

My improvements consist more especially in the device for holding theparts composing the several sections together and the manner ofsupporting the covering upon the steampipes or boilers at a distancetherefrom;

The construction of my improvements is further explained by reference tothe accompanying drawings, in which Figure 1. represents a cross-sectionof my covering attached to a steam-pipe. Fig. 2 illustrates the mannerof connecting the sec tions of covering to a boiler. Fig. 3 representsthe exterior of the covering upon a steampipe. Fig. 4 represents theinterior View of the covering as made preparatory to being placed on aboiler.

Like parts are represented by the same refercnce-letters throughout theseveral views.

A represents the stean1-pipe or boiler. 13 is a covering, consisting ofsheet metal 0, layers of paper D, layer of felt E, layers of paper F,and sheet-metal interior G. This covering is retained in proper shapefor hand ling preparatory to being placed upon pipes or boilers by ametallic frame formed of sheet metal strips H and I, arranged at rightangles and secured to each other and the covering by bolts J, as shownin Figs. 2 and K K are retaining-bands, and L L are binding-bolts, bywhich bands and bolts the several sections of covering are connectedtogether around the boiler or pipe. The retaining-bands K are held inplace around the covering by bolts J. The covering thus (No model.)

formed is supported around the boiler or pipe at a short distancetherefrom by the bolts N, which are secured in holes provided thereforin the cross-strips H, and the inner sheetmetal lining, G, at shortintervals by nutsO 0. Thus it is obvious that two air-spaces are formedbetween the pipe and the feltone wide space, P, corresponding to thelength of bolt between its head and the first nut, and a narrow spacecorresponding to the thickness of the second nut.

The covering for pipes may, if desired, be formed in a single piece, asshown in Fig. 1, in which case it may be sprung apart at its contiguousedges It when placing it around or removing it from the pipe.

For boilers or any large area of surface the covering is formed in anynumber of sections desired, which sections, when formed, are securedupon the surface, as mentioned, by the retaining-bands K and bolts L.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

,1. In a sectional or detachable covering for steampipes and boilers,the combination of the frame-strips H and I, arranged at right angles toeach other, covering B, retainingbolts J, extending through the coveringB and both of said strips H and I at their points of contact, andserving the twofold purpose of holding the parts of the frame togetherand retaining the covering thereon, and supports N, adapted to rest uponand support the covering around and at a distance from the boiler orpipe, substantially as and for the purpose specified.

2. In a sectional boiler covering, the com bination of the covering B,consisting of felt E, provided upon its intcriorand exterior surfaceswith one or more sheets of paper, D and F, sheet-metal interior andexterior surfaces G, frame-strips H and I, supporting-bolts N, providedwith nuts 0 O, and retaining-bands K, provided with binding-bolts L, allsubstantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

LA FAYETTE ALDRICH.

Witnesses:

J AS. 13. ERWIN, WM. SINNOTT.

CID

